Subgroup temperaments: Difference between revisions
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== 2.3.… subgroups == | == 2.3.… subgroups == | ||
=== Shrub === | === Shrub === | ||
Shrub is a [[restriction]] of [[diaschismic family #Diaschismic|diaschismic]] which omits the tritone to produce a [[5L 2s|diatonic]] scale. True to its name, it generates a [[neogothic major and minor|shrubmajor]]{{idio}} third (~425{{c}}) in quarter-comma tuning. It has an equal-temperament join of 12 & 17. | |||
Subgroup: 2.3.25 | ==== 2.3.25 subgroup ==== | ||
[[Subgroup]]: 2.3.25 | |||
[[Comma list]]: 2048/2025 | |||
{{Mapping|legend=3| 1 0 11 | 0 1 -4 }} | |||
: mapping generators: ~2, ~3 | |||
{{ | [[Optimal tuning]]s: | ||
* [[WE]]: ~2 = 1198.8214{{c}}, ~3/2 = 704.2059{{c}} | |||
* [[CWE]]: ~2 = 1200.0000{{c}}, ~3/2 = 704.9585{{c}} | |||
Optimal | {{Optimal ET sequence|legend=1| 12, 17, 46, 63, 80, 143* }} | ||
<nowiki/>* Wart for 25 | |||
[[Badness]] (Sintel): 0.234 | |||
===== 2.3.25.23 subgroup ===== | |||
Subgroup: 2.3.25.23 | |||
Comma list: 576/575, 736/729 | |||
{{Mapping|legend=2| 1 0 11 -5 | 0 1 -4 6 }} | |||
==== | Optimal tunings: | ||
* WE: ~2 = 1198.9504{{c}}, ~3/2 = 704.6585{{c}} | |||
* CWE: ~2 = 1200.0000{{c}}, ~3/2 = 705.1888{{c}} | |||
{{Optimal ET sequence|legend=0| 12, 17, 63, 80, 97*, 114* }} | |||
<nowiki/>* Wart for 25 | |||
Badness (Sintel): 0.223 | |||
{{ | ===== 2.3.25.23.41 subgroup ===== | ||
{{See also| Reversed meantone }} | |||
Optimal | Subgroup: 2.3.25.23.41 | ||
Comma list: 82/81, 369/368, 576/575 | |||
{{Mapping|legend=2| 1 0 11 -5 -1 | 0 1 -4 6 4 }} | |||
Optimal tunings: | |||
* WE: ~2 = 1199.3246{{c}}, ~3/2 = 705.2238{{c}} | |||
* CWE: ~2 = 1200.0000{{c}}, ~3/2 = 705.5491{{c}} | |||
{{Optimal ET sequence|legend=0| 5, 12, 17 }} | |||
Badness (Sintel): 0.284 | |||
==== Sburb ==== | |||
Sburb is every other step of [[pajara]], extended to the add-23 add-41 subgroup in the same way as shrub. It can also admit a [[59/1|59th harmonic]] by setting the [[octave reduction|octave-reduced]] 413th harmonic (413/256, 827.998{{c}}) to the diminished seventh. | |||
Subgroup: 2.3.25.7 | |||
Comma list: 50/49, 64/63 | |||
{{Mapping|legend=2| 1 0 11 6 | 0 1 -4 -2 }} | |||
Optimal tunings: | |||
* WE: ~2 = 1197.6967{{c}}, ~3/2 = 705.6906{{c}} | |||
* CWE: ~2 = 1200.0000{{c}}, ~3/2 = 707.3438{{c}} | |||
{{Optimal ET sequence|legend=0| 5, 12, 17, 39d }} | |||
Badness (Sintel): 0.253 | |||
===== 2.3.25.7.23 subgroup ===== | |||
Subgroup: 2.3.25.7.23 | |||
Comma list: 50/49, 64/63, 162/161 | |||
{{Mapping|legend=2| 1 0 11 6 -5 | 0 1 -4 -2 6 }} | |||
Optimal tunings: | |||
* WE: ~2 = 1197.5577{{c}}, ~3/2 = 705.3089{{c}} | |||
* CWE: ~2 = 1200.0000{{c}}, ~3/2 = 706.7010{{c}} | |||
{{Optimal ET sequence|legend=0| 5, 12, 17 }} | |||
Badness (Sintel): 0.419 | |||
===== 2.3.25.7.23.41 subgroup ===== | |||
Subgroup: 2.3.25.7.23.41 | |||
Comma list: 50/49, 64/63, 82/81, 162/161 | |||
{{Mapping|legend=2| 1 0 11 6 -5 -1 | 0 1 -4 -2 6 4 }} | |||
Optimal tunings: | |||
* WE: ~2 = 1197.9403{{c}}, ~3/2 = 705.9522{{c}} | |||
* CWE: ~2 = 1200.0000{{c}}, ~3/2 = 707.0779{{c}} | |||
{{Optimal ET sequence|legend=0| 5, 12, 17, 39d }} | |||
Badness (Sintel): 0.450 | |||
=== Darian calendar === | === Darian calendar === | ||